In the expression describing oscillatory motion

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

In the expression

y = A \sin(\omega t + \phi)

describing oscillatory motion, what are the dimensions of the quantity

(\omega t + \phi)

inside the sine function? (a)

[T^{-1}]

(b)

[L^{-1}]

[T]